Gottfried bachek



(No Model.)

G. BAGHER.

APPARATUS FOR DBPOSITING AND GOLLEGTING SEDIMENTS OR PRBGIPITATES.-

Nq. 277,191. Patented May 8,188

M PETERS- Wuhingmn. n. c.

UNITED STATES PATENT OFFICE.

GOTTFRIED BAGHER, on K'LADNO, AUSTRIA-HUNGARY.

APPARATUS FOR DEPOSITING AND COLLECTING'SEDIMENTS OR PRECIPITATES.

SPECIFIQATION formingpart of Letters Patent No. 277,191, dated May 8,1883.

Application filed September 21, 1882. (No model.)

1" 0 all whom it may concern:

Be it known that l, GoT'rFRIED BACHER, director of mines of the town ofKladno, in Austria-Hungary, have invented certain new and usefulImprovements in Apparatus for Depositing and Collecting Sediments orPrecipitates; and I do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same.

The chiefnovel feature oft-his invention consists in the combination,with a suitable vessel, of a movable and transportable bottom, which isconducted through the vessel contain ing the fluid, at a distanceslightly above the bottom of the same, and afterward ledout of thevessel up the side of the same in a slanting or inclined direction. Atthe same rate as the movable bottom, with the sediment uponit, leavesthe one side of the vessel or receptacle, an empty bottom enters at theother side, so that the bottom of the receptacle is always covered byamovable or sliding-bottom, whether the operation is carried outcontinuously or withinterruptions. As the sliding bottom has to move invarying directions, it must be made flexible. It can be made of variousmaterialsfor instance, iron, steel, wood, caoutchouc, felt, web fabric,'or other suitable materialand can be constructed as an endless band, oras a band with ends with or without an edge or border. The surface ofthe same can, according to the character of the sediment, be madesmooth, uneven, rough, milled, or provided with laths, pervious orimpervious to water. In order to cause the transportable or movablebottom to move in the proper direction, guides are arranged, which saidguides consist of round, polygonal, or other rollers, or a combinationof such said rollers. The motion of the sliding bottom can be effectedby hand or by a machine at intervals or without interruption. Theremoval of the sediment or precipitate from the sliding bottom can bedone by hand orbyasuitable mechanicalarrangement. The sediment can alsobe dried while it is upon the band or sliding bottom by exposing it tothe air; or an artificial drying can be produced by causing the band orsliding bottom to pass through warmed chambers or apartments.

A is the vessel or receptacle for the sedimentary fiuid, and consists ofa right-angled tank or cistern whose length is greater than its breadth.a is the slanting side or end. The fluid containing the sediment entersat the spout b and flows along the tank toward the outlet 0, where itflows 01f in'a clear state, havingpreviously had time to deposit itssediment. The sediment is collected on the sliding bottom 0, and istransported out of the receptacle by means of the sa rne,and is removedfrom this said bottom in the neighborhood of e by hand or by means ofasuitable apparatus. A The emptied bottom returns round the rollers g y,descends through the clear fluid, and, after passing the roller 9 isagain in a pdsition to receive the sediment. In this arrangement thesliding bottom consists of an endless band, which is constructed of twoangle-iron chains, ff, upon every two links of which narrow boards arefixed, which said boards butt one against the other, and so form onecontinuous bottom, which can at the same time easilymovearoundthedesiredcourse. Thethreepriucipal curves of the band areeffected, as stated, by the rollers g g 9 which consist of pairs ofoctagonal disks, around which the angle-iron chains turn. The spacebetween each pair of disks remains unoccupied, so that the boards canpass without being crushed. The tension ofthe band is principally in thechains, and the strain exerted by the octagonal disks is transferredonly to the chains. The motion of the band or sliding bottom is effectedby means ofa screw and worm-wheel, which latter is fixed to the sameaxle as the disk g. For guidin g the sliding bottom at that point whereit quits the horizontal plane to ascend the incline, small rollers ordisks tare employed, which also come only into contact with the twochains, permitting free passage of the v boards and the sediment 0n thesame.

Fig. 4 shows a modification of the method of guiding the movable bottom.In this case the vessel or receptacle A is provided at both ends with aninclined plane, 0, so as to enable the sediment to be conducted out ateither end. In this case the movable bottom returns underneath thevessel or receptacle.

Fig. 5 shows another modification, where the moving bottom or band hasends. The two rollers a. and b serve alternately as draft-rollers, andthus the band or bottom works to and fro, being wound alternately roundthe rollers a b, and the sediment is. ejected first at one end of thetank and then at the other. It will thus be seen that the carrying outof the sediment can be effected during the sedimentary process withoutdisturbing the same, whether the water is in motion or stagnant. Thisarrangement is also serviceable when it is desired to remove thesedimentin the absence of the fluid.

These improvements are applicable for every process of obtainingsediments orprecipitates which may occur in any branch of industry, andcan be carried out on the smallest or most extensive scale. Thearrangementis, however, specially adapted to the preparation or washingof 'ores or coal, and it several superposed bands or movable bottomshaving interstices or perforations of various sizes are employed,sediments or precipitates of various degrees of fineness can beobtained.

Having now described my said invention and the manner in which the sameis to be carried into effect, I claim and desire to have secured byLetters Paten,t-

1. Combined with the tank A, the movable belthaving horizontal andinclined portions, upon which the sediment is deposited, and means forrevolving said belt, so as to withdraw the precipitated sediment fromthe tank.

2. Combined with the tank having inlet and outlet liquid-openin gs, afalse bottom mounted upon rollers and adapted to remain stationary andpartially submerged within the tank while the sediment is beingdeposited, and to be withdrawn with such deposit, substantially asdescribed.

. GOTTFRIED BAGHER/ Witnesses:

EDWIN A. BRYDGES, JoHN 0. ToNKrN.

